NCP176
Fast Transient Response
Low Voltage 500 mA LDO
The NCP176 is CMOS LDO regulator featuring 500 mA output
current. The input voltage is as low as 1.4 V and the output voltage can
be set from 0.7 V.
Features
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FB
GND
2
3
GND
•
•
•
•
•
•
•
•
•
•
Operating Input Voltage Range: 1.4 V to 5.5 V
Output Voltage Range: 0.7 to 3.6 V (0.1 V steps)
Quiescent Current typ. 60
mA
Low Dropout: 130 mV typ. at 500 mA, V
OUT
= 2.5 V
High Output Voltage Accuracy
±0.8%
(V
OUT
> 1.8 V)
Stable with Small 1
mF
Ceramic Capacitors
Over−current Protection
Built−in Soft Start Circuit to Suppress Inrush Current
Thermal Shutdown Protection: 165°C
With (NCP176A) and Without (NCP176B) Output Discharge
Function
•
Available in XDFN6 1.2 mm x 1.2 mm x 0.4 mm Package
•
These are Pb−free Devices
Typical Applications
XDFN6
MX SUFFIX
CASE 711AT
PIN CONNECTIONS
OUT
1
6
5
4
IN
N/C
EN
XDFN6 (Top View)
•
Battery Powered Equipment
•
Portable Communication Equipment
•
Cameras, Image Sensors and Camcorders
V
IN
C
IN
1
mF
IN
ON
MARKING DIAGRAM
XX M
V
OUT
C
OUT
1
mF
OUT
NCP176
EN
GND
FB
XX = Specific Device Code
M = Date Code
OFF
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 10 of this data sheet.
Figure 1. Typical Application Schematic
©
Semiconductor Components Industries, LLC, 2015
October, 2018
−
Rev. 4
1
Publication Order Number:
NCP176/D
NCP176
IN
PROG . VOLTAGE
REFERENCE AND
SOFT
−
START
OUT
IN
PROG . VOLTAGE
REFERENCE AND
SOFT
−
START
OUT
FB/ADJ
EN
0.7 V
THERMAL
SHUTDOWN
FB/ADJ
EN
0.7 V
GND
THERMAL
SHUTDOWN
GND
NCP176A (with output active discharge)
NCP176B (without output active discharge)
Figure 2. Internal Block Diagram
Table 1. PIN FUNCTION DESCRIPTION
Pin No.
XDFN6
1
2
3
4
5
6
EPAD
Pin
Name
OUT
FB
GND
EN
N/C
IN
EPAD
Description
LDO output pin
Feedback input pin
Ground pin
Chip enable input pin (active “H”)
Not internally connected. This pin can be tied to the ground plane to improve thermal dissipation.
Power supply input pin
It is recommended to connect the EPAD to GND, but leaving it open is also acceptable
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Maximum Junction Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
Symbol
IN
OUT
EN
I
OUT
T
J(MAX)
T
STG
ESD
HBM
ESD
MM
Value
−0.3
to 6.0
−0.3
to V
IN
+ 0.3
−0.3
to 6.0
Internally Limited
150
−55
to 150
2000
200
Unit
V
V
V
mA
°C
°C
V
V
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latchup Current Maximum Rating tested per JEDEC standard: JESD78
Table 3. THERMAL CHARACTERISTICS
Rating
Thermal Resistance, Junction−to−Air, XDFN6 1.2 mm x 1.2 mm (Note 3)
Symbol
R
qJA
Value
123
Unit
°C/W
3. Measured according to JEDEC board specification. Detailed description of the board can be found in JESD51−7.
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NCP176
Table 4. ELECTRICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 1 V (V
OUT−NOM
> 1.5 V) or V
IN
= 2.5 V (V
OUT−NOM
≤
1.5 V),
Parameter
Input Voltage
Output Voltage
T
J
= +25°C
−40°C
≤
T
J
≤
85°C
Line Regulation
Load Regulation
Dropout Voltage (Note 5)
V
OUT
≥
1.8 V
V
OUT
< 1.8 V
V
OUT
≥
1.8 V
V
OUT
< 1.8 V
V
IN
= V
OUT−NOM
+ 0.5 V to 5.25 V
V
IN
≥
1.4 V
1 mA
≤
I
OUT
≤
500 mA
I
OUT
= 500 mA
1.4 V
≤
V
OUT
< 1.8 V
1.8 V
≤
V
OUT
< 2.1 V
2.1 V
≤
V
OUT
< 2.5 V
2.5 V
≤
V
OUT
< 3.0 V
3.0 V
≤
V
OUT
< 3.6 V
Quiescent Current
Standby Current
Output Current Limit
Short Circuit Current
Enable Threshold Voltage
I
OUT
= 0 mA
V
EN
= 0 V
V
OUT
= V
OUT−NOM
−
100 mV
V
OUT
= 0 V
EN Input Voltage “H”
EN Input Voltage “L”
Enable Input Current
Power Supply Rejection
Ratio
Output Noise
V
EN
= V
IN
= 5.5 V
f = 1 kHz, Ripple 0.2 Vp−p,
V
IN
= V
OUT−NOM
+ 1.0 V, I
OUT
= 30 mA
(V
OUT
≤
2.0V, V
IN
= 3.0 V)
f = 10 Hz to 100 kHz
V
OUT
≥
1.8 V
V
OUT
< 1.8 V
Output Discharge Resistance
(NCP176A option only)
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
V
IN
= 4.0 V, V
EN
= 0 V, V
OUT
= V
OUT−NOM
Temperature rising from T
J
= +25°C
Temperature falling from T
SD
R
ACTDIS
T
SD
T
SDH
I
Q
I
STBY
I
OUT
I
SC
V
ENH
V
ENL
I
EN
PSRR
0.15
75
500
550
1.0
0.4
0.6
mA
dB
750
LineReg
LoadReg
V
DO
Test Conditions
Symbol
V
IN
V
OUT
Min
1.4
−0.8
−18
−1.5
−55
0.02
1
295
200
160
130
110
60
0.05
Typ
Max
5.5
+0.8
+18
+1.5
+50
0.1
5.0
380
275
230
190
165
90
1
mA
mA
mA
mA
V
V
EN
= 1.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1.0
mF,
T
J
= 25°C. The specifications
in bold
are guaranteed at
−40°C
≤
T
J
≤
85°C. (Note 4)
Unit
V
%
mV
%
mV
%/V
mV
mV
20x
V
OUT−NOM
40x
V
OUT−NOM
60
165
20
mV
RMS
W
°C
°C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at T
A
= 25°C.
Low duty cycle pulse techniques are used during the testing to maintain the junction temperature as close to ambient as possible.
5. Measured when the output voltage falls
−3%
below the nominal output voltage (voltage measured under the condition V
IN
= V
OUT−NOM
+ 0.5V).
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NCP176
TYPICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 1 V (V
OUT−NOM
> 1.5 V) or V
IN
= 2.5 V (V
OUT−NOM
≤
1.5 V), V
EN
= 1.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1.0
mF,
T
J
= 25°C.
1.255
1.245
OUTPUT VOLTAGE (V)
1.225
1.215
1.205
1.195
1.185
1.175
1.165
1.155
1.145
−40
V
OUT−NOM
= 1.2 V
OUTPUT VOLTAGE (V)
1.235
1.827
1.821
1.815
1.809
1.803
1.797
1.791
1.785
1.779
60
80
1.773
−40
−20
0
20
40
60
80
V
OUT−NOM
= 1.8 V
−20
0
20
40
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 3. Output Voltage vs. Temperature
3.35
3.34
LINE REGULATION (%/V)
OUTPUT VOLTAGE (V)
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
−40
−20
0
20
40
60
80
V
OUT−NOM
= 3.3 V
0.10
0.08
0.06
0.04
0.02
0
−0.02
−0.04
−0.06
−0.08
−0.10
−40
Figure 4. Output Voltage vs. Temperature
V
OUT−NOM
= 1.2 V
V
OUT−NOM
= 1.8 V
V
OUT−NOM
= 3.3 V
V
IN
= V
OUT−NOM
+ 0.5 V to 5.25 V, V
IN
≥
1.4 V
−20
0
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 5. Output Voltage vs. Temperature
5
4
LOAD REGULATION (mV)
3
2
1
0
−1
−2
−3
−4
−5
−40
Figure 6. Line Regulation vs. Temperature
V
OUT−NOM
= 1.2 V
V
OUT−NOM
= 1.8 V
V
OUT−NOM
= 3.3 V
I
OUT
= 1 mA to 500 mA
−20
0
20
40
60
80
TEMPERATURE (°C)
Figure 7. Load Regulation vs. Temperature
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NCP176
TYPICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 1 V (V
OUT−NOM
> 1.5 V) or V
IN
= 2.5 V (V
OUT−NOM
≤
1.5 V), V
EN
= 1.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1.0
mF,
T
J
= 25°C.
275
250
DROPOUT VOLTAGE (mV)
225
200
175
150
125
100
75
50
25
0
T
J
=
−40°C
T
J
= 25°C
V
OUT−NOM
= 1.8 V
DROPOUT VOLTAGE (mV)
T
J
= 85°C
275
250
225
200
175
150
125
100
75
50
25
0
−40
I
OUT
= 250 mA
V
OUT−NOM
= 1.8 V
I
OUT
= 500 mA
I
OUT
= 100 mA
I
OUT
= 10 mA
−20
0
20
40
60
80
TEMPERATURE (°C)
0
100
200
300
400
500
OUTPUT CURRENT (mA)
Figure 8. Dropout Voltage vs. Output Current
Figure 9. Dropout Voltage vs. Output Current
160
DROPOUT VOLTAGE (mV)
140
120
100
80
60
40
20
0
0
V
OUT−NOM
= 3.3 V
DROPOUT VOLTAGE (mV)
T
J
= 85°C
160
140
120
100
80
60
40
20
V
OUT−NOM
= 3.3 V
I
OUT
= 500 mA
T
J
= 25°C
T
J
=
−40°C
I
OUT
= 250 mA
I
OUT
= 100 mA
I
OUT
= 10 mA
−20
0
20
40
60
80
100
200
300
400
500
0
−40
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
Figure 10. Dropout Voltage vs. Output Current
90
QUIESCENT CURRENT (mA)
80
70
60
50
40
30
20
10
0
−40
I
OUT
= 0 mA
−20
0
20
Figure 11. Dropout Voltage vs. Temperature
V
OUT−NOM
= 1.2 V
V
OUT−NOM
= 1.8 V
V
OUT−NOM
= 3.3 V
40
60
80
TEMPERATURE (°C)
Figure 12. Quiescent Current vs. Temperature
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